Optimum Nutrition (ON) ON Whey Gold Standard - 5 lb Rocky Road

Whey Protein Isolates (WPI) are the purest form of whey protein that currently exists. This superior quality powder has been instantized to mix easily using a shaker cup or just a glass and spoon. There's no doubt that this is the standard by which all other whey proteins are measured.

Carbohydrates are a good source of energy. A good reason to consume carbohydrates post-workout is to replenish the muscle glycogen that we burned during our workout. Our main fuel source is muscle glycogen. Glycogen is the storage form of glucose. So, a higher amount of carbohydrate is useful in gaining body weight.